DANIEL WALTER NACHBAR
Pilots at Pulpit Hl Rd, Amherst, MA
License number
Massachusetts A2293619
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
120 Pulpit Hill Rd, Amherst, MA 01002
Personal information
See more information about DANIEL WALTER NACHBAR at radaris.comName
Address
Phone
120 Pulpit Hill Rd #4, Amherst, MA 01002
12 Calvin Ter, Northampton, MA 01060
Professional information
See more information about DANIEL WALTER NACHBAR at trustoria.com
Lighter Than Air Foldable Airship
Lighter Than Air Foldable Airship
US Patent:
6793180, Sep 21, 2004
Filed:
Aug 5, 2002
Appl. No.:
10/213348
Inventors:
Daniel Nachbar - Amherst MA 01002
John A. Fabel - Amherst MA 01002
John A. Fabel - Amherst MA 01002
International Classification:
B64B 108
US Classification:
244125, 244126, 244128
Abstract:
A system and method for constructing an airship hull is described, comprising a plurality of flexible members disposed lengthwise about the perimeter of the airship skin. The flexible members can be held in place in sleeves on the skin of the airship. The ends of the flexible members are drawn toward one another by tensioning means, causing the members to bow outwardly from a central axis and providing a rigid structure for the skin.
Hoop Stress Reduction In A Buoyant Airship
Hoop Stress Reduction In A Buoyant Airship
US Patent:
7669796, Mar 2, 2010
Filed:
May 24, 2005
Appl. No.:
11/135555
Inventors:
Daniel Nachbar - Amherst MA, US
International Classification:
B64B 1/06, B64B 1/58
US Classification:
244 30, 244128
Abstract:
A system and method for equalizing internal and external pressure on an enclosed vessel moving through a gas or fluid is described, thereby reducing hoop stresses imposed on the vessel by pressure differentials. The vessel is divided into multiple chambers, and the internal pressure of a chamber may be equalized with an external pressure proximate the chamber through the use of a valve or controllable vent.
Internal Support Structure For An Airship
Internal Support Structure For An Airship
US Patent:
7841561, Nov 30, 2010
Filed:
May 18, 2006
Appl. No.:
11/383996
Inventors:
Daniel Nachbar - Amherst MA, US
International Classification:
B64B 1/08, B64B 1/00
US Classification:
244125, 244 30
Abstract:
A system and method for internally supporting a flexible envelope such as an airship is described, comprising a truss structure and supporting struts attached to a central support member. The internal structure may be foldable so as to allow the envelope to be collapsed when not in use.
Mouse Pad
Mouse Pad
US Patent:
D432137, Oct 17, 2000
Filed:
Mar 31, 1999
Appl. No.:
D/102760
Inventors:
Henry N. Holtzman - West Roxbury MA
Patricia S. Robertson - Lexington MA
Daniel W. Nachbar - Amherst MA
David M. Kroll - Westfield MA
Patricia S. Robertson - Lexington MA
Daniel W. Nachbar - Amherst MA
David M. Kroll - Westfield MA
Assignee:
Presto Technologies, Inc. - Cambridge MA
International Classification:
1402
US Classification:
D14458